The Evaluation of Clinical Status of Endoscopic Retrograde Cholangiography for the Placement of Metal and Plastic Stents in Cholangiocarcinoma Therapy

Table 2

Comparison of liver function between the two groups ().

Groups		ALT (U/L)	DBIL (μmol/L)	AST (U/L)	ALP (U/L)	TBIL (μmol/L)
The plastic stent group ()	Before treatment
	After treatment	^a	^a	^a	^a	^a
The metal stent group ()	Before treatment
	After treatment	^ab	^ab	^ab	^ab	^ab

Note: ^a compared with the same group before treatment. ^b compared with the plastic stent group after treatment.